From b33ea78537b297bcc4091ede9e9d9837992a372f Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Tue, 22 Jan 2019 15:47:33 +1100
Subject: [PATCH] Remove signal bootstrapping

Remove IpfsDHT.BootstrapOnSignal.
---
 dht_bootstrap.go | 21 ---------------------
 dht_test.go      | 21 +++++----------------
 2 files changed, 5 insertions(+), 37 deletions(-)

diff --git a/dht_bootstrap.go b/dht_bootstrap.go
index a448e7f2b22..613b7c9b65c 100644
--- a/dht_bootstrap.go
+++ b/dht_bootstrap.go
@@ -8,7 +8,6 @@ import (
 
 	u "github.com/ipfs/go-ipfs-util"
 	goprocess "github.com/jbenet/goprocess"
-	periodicproc "github.com/jbenet/goprocess/periodic"
 	peer "github.com/libp2p/go-libp2p-peer"
 	routing "github.com/libp2p/go-libp2p-routing"
 )
@@ -90,26 +89,6 @@ func (dht *IpfsDHT) BootstrapWithConfig(cfg BootstrapConfig) (goprocess.Process,
 	return proc, nil
 }
 
-// SignalBootstrap ensures the dht routing table remains healthy as peers come and go.
-// it builds up a list of peers by requesting random peer IDs. The Bootstrap
-// process will run a number of queries each time, and run every time signal fires.
-// These parameters are configurable.
-//
-// SignalBootstrap returns a process, so the user can stop it.
-func (dht *IpfsDHT) BootstrapOnSignal(cfg BootstrapConfig, signal <-chan time.Time) (goprocess.Process, error) {
-	if cfg.Queries <= 0 {
-		return nil, fmt.Errorf("invalid number of queries: %d", cfg.Queries)
-	}
-
-	if signal == nil {
-		return nil, fmt.Errorf("invalid signal: %v", signal)
-	}
-
-	proc := periodicproc.Ticker(signal, dht.bootstrapWorker(cfg))
-
-	return proc, nil
-}
-
 func (dht *IpfsDHT) bootstrapWorker(cfg BootstrapConfig) func(worker goprocess.Process) {
 	return func(worker goprocess.Process) {
 		// it would be useful to be able to send out signals of when we bootstrap, too...
diff --git a/dht_test.go b/dht_test.go
index dde2f4eb952..31b69dcfada 100644
--- a/dht_test.go
+++ b/dht_test.go
@@ -679,23 +679,10 @@ func TestPeriodicBootstrap(t *testing.T) {
 		}
 	}()
 
-	signals := []chan time.Time{}
-
 	var cfg BootstrapConfig
 	cfg = DefaultBootstrapConfig
 	cfg.Queries = 5
 
-	// kick off periodic bootstrappers with instrumented signals.
-	for _, dht := range dhts {
-		s := make(chan time.Time)
-		signals = append(signals, s)
-		proc, err := dht.BootstrapOnSignal(cfg, s)
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer proc.Close()
-	}
-
 	t.Logf("dhts are not connected. %d", nDHTs)
 	for _, dht := range dhts {
 		rtlen := dht.routingTable.Size()
@@ -721,9 +708,11 @@ func TestPeriodicBootstrap(t *testing.T) {
 	}
 
 	t.Logf("bootstrapping them so they find each other. %d", nDHTs)
-	now := time.Now()
-	for _, signal := range signals {
-		go func(s chan time.Time) { s <- now }(signal)
+	for _, dht := range dhts {
+		_, err := dht.BootstrapWithConfig(cfg)
+		if err != nil {
+			t.Fatalf("error bootstrapping a dht: %s", err)
+		}
 	}
 
 	// this is async, and we dont know when it's finished with one cycle, so keep checking